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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 257750Generated: November 2, 2026

Maleic Acid → 4-Methylamino-2-(4-phenylpiperidino)pyrimidine maleate

https://huagongshe.com/reaction/257750

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMaleic AcidHCID 444266—
ReactantN-Methyl-2-(4-phenylpiperidin-1-yl)pyrimidin-4-amineHCID 15229206—
SolventMethanolHCID 887—
Product4-Methylamino-2-(4-phenylpiperidino)pyrimidine maleateHCID 6775963087.2%

Reaction Steps

A solution of 0.43 g (3.73 mmoles) of maleic acid in 10 ml of methanol was added to a solution of 1.0 g (3.73 mmoles) of 4-methylamino-2-(4-phenylpiperidino)pyrimidine in 10 ml of methanol, and the mixture was stirred at room temperature for 1 hour. The mixed solution was concentrated under reduced pressure and washed with ether to give 1.25 g (yield 87%) of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05264435
Source datasetuspto-grants-1993_11
ORD IDord-9a317ba2e5c44b888a4c8778c1269dc1
Source noteuspto-grants-1993_11